Pneumatic tire.



No. 820,104. PATENTED MAY 8, 1QG6 P. W. PAWCE'IT 62 E. L. W. BELLHOUSE. PNEUMATIC TIRE.

APPLIUATION FILED 0G3. 25 M04.

UNITED STATEQ PATENT OFFICE.

PERCY WILLIAM FAWULTT AND EBVVARD LLOYD WYNYARD BELLHOUSE, OF. SHEFFIELD. ENGLAND.

' PNEUMATIC TIRE.

Specification of Letters Patent.

Patented May 8, 1906.

Application filed October 25, 1904. Serial No. 229.950

To all whom it may concern:

Be it 'known that we,- PERCY WILLIAM FAWCETT, residing at Middlewood Hall, Sheffield, and EDWARD LLOYD WYNYARD BELL- HOUSE, residing at Greno House, Shefiield, England, subjects of the King of Great Britsin and Ireland, have invented a certain new and useful Improvement in Pneumatic Tires for Vehicles, (for which we have applied for Letters Patent in Great Britain, No. 23 ,994, November 5, 1903; in Germany, September 12, 1904; in France, No. 12,313, September 15, 1904, and in Bel um, September 13, 1904,) of which the following is a specification.

This invention relates to the construction of a removable tread of metal or other material and to the construction of a cover for the air-tube of pneumatic tires, and the drawings which form part of this specification illustrate the invention.

Figure 1 is a section of a com lete tire fixed to the rim of awheel; Fig. 2, a p an of a section of a flexible tread; Fig. 3, an end view of same at the narrow end Fig. 4, a similar view at the broad end.

In carrying out the invention as shown in the sectional View, Fig. 1, for example, the tread tis a ring of metal of the de sired diameter and is made with turned-over edges 6.. The rim (1 of the'wheel w is also made with similar turned-over edges e;

The cover for the air-tube p is made in two half arts 0 and C, the division being circum erential through the outer and inner peripheries. Thus each part forms a complete annular side piece, and when put together they form a tubular cover for the air-tube. The top junction is preferably made diagonal.

as shown at i, so that the edge of (l overlaps the ed e of C"; but thisis not essential.

Eac part of the cover is made with two continuous ribs 7', which fit underneath the turned-over edges of the tread t and of the rim d, and when the air-tube p is ex ended, the parts being all in position the ri s are forced into the spaces under the turned-over edges of the tread and rim and the several nch a section is shown in Figs.

to expansion of the air-tube, is automatic and easy. These treads-sections are made to clip upon the tire. The lip A fits loosely into the re cess B in the next section and the parts Oslide underneath the overhanging parts E and shot against D. Thus the sections can be drawn apart longitudinally as they would be on the expansion of the tire or slightly when the under side of tire was flattened by the weight of the car, but cannot disengage s idewise.

V The chief features of the invention are the j construction of the air-tube cover and a re- 1 movable tread with turned-over edges for the 1 per ass of attachment.

aving now described our invention, What u we cla1m as new, and desire to secure by Lettors Patent, is

A. flexible metallic tread for tires of wheels consisting of a plura ity of sections, each section having a central tongue at one end and a corresponding recessat its other end and recesses on each side of the central recess on the upper side of the section and 1v overhanging portions at its other end on each side of the tongue, the tongues and overhanging portions engaging the I corresponding recesses 1n the admeent sections.

In witness whereof we have hereunto set our hands in presence of two witnesses.

PERGY WILL] A l" A WC ETT. EDWARD LLUY I) W Y N YARD BELLHQUSE.

Witnesses:

Ron'r. F. Dmmr, LUTHER J. PARK. 

